LTC2452 - Ultra-Tiny, Differential, 16-Bit ΔΣ ADC with SPI Interface
Features
- ±VCC Differential Input Range
- 16-Bit Resolution (Including Sign), No Missing Codes
- 2LSB Offset Error
- 4LSB Full-Scale Error
- 60 Conversions Per Second
- Single Conversion Settling Time for Multiplexed Applications
- Single-Cycle Operation with Auto Shutdown
- 800μA Supply Current
- 0.2μA Sleep Current
- Internal Oscillator—No External Components Required
- SPI Interface
- Ultra-Tiny 3mm × 2mm DFN and TSOT-23 Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC®2452 is an ultra-tiny, fully differential, 16-bit, analog-to-digital converter. The LTC2452 uses a single 2.7V to 5.5V supply and communicates through an SPI interface. The ADC is available in an 8-pin, 3mm × 2mm DFN package or TSOT-23 package. It includes an integrated oscillator that does not require any external components. It uses a delta-sigma modulator as a converter core and has no latency for multiplexed applications. The LTC2452 includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude when compared to conventional delta-sigma converters. Additionally, due to its architecture, there is negligible current leakage between the input pins.
The LTC2452 can sample at 60 conversions per second, and due to the very large oversampling ratio, has extremely relaxed anti-aliasing requirements. The LTC2452 includes continuous internal offset and full-scale calibration algorithms which are transparent to the user, ensuring accuracy over time and over the operating temperature range. The converter has an external REF pin and the differential input voltage range can extend up to ±VREF .
Following a single conversion, the LTC2452 can automatically enter a sleep mode and reduce its supply current to less than 0.2μA. If the user reads the ADC once a second, the LTC2452 consumes an average of less than 50μW from a 2.7V supply.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC2452CDDB#PBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2452CDDB#TRMPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2452CDDB#TRPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2452CTS8#PBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2452CTS8#TRMPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2452CTS8#TRPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2452IDDB#PBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2452IDDB#TRMPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2452IDDB#TRPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2452ITS8#PBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2452ITS8#TRMPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2452ITS8#TRPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2452CDDB#PBF | 3x2 DFN-8 | C | $2.32 | Yes | ||
| LTC2452CDDB#TRMPBF | 3x2 DFN-8 | C | $2.32 | $1.30 | Yes | |
| LTC2452CDDB#TRPBF | 3x2 DFN-8 | C | $2.32 | $1.25 | Yes | |
| LTC2452CTS8#PBF | SOT-23 | C | $2.32 | Yes | ||
| LTC2452CTS8#TRMPBF | SOT-23 | C | $2.32 | $1.30 | Yes | |
| LTC2452CTS8#TRPBF | SOT-23 | C | $2.32 | $1.25 | Yes | |
| LTC2452IDDB#PBF | 3x2 DFN-8 | I | $2.77 | Yes | ||
| LTC2452IDDB#TRMPBF | 3x2 DFN-8 | I | $2.77 | $1.55 | Yes | |
| LTC2452IDDB#TRPBF | 3x2 DFN-8 | I | $2.77 | $1.50 | Yes | |
| LTC2452ITS8#PBF | SOT-23 | I | $2.77 | Yes | ||
| LTC2452ITS8#TRMPBF | SOT-23 | I | $2.77 | $1.55 | Yes | |
| LTC2452ITS8#TRPBF | SOT-23 | I | $2.77 | $1.50 | Yes | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1384A-A | LTC2452: 16-bit, SPI Differential Ultra-Tiny Delta Sigma ADC (req DC590) | $50.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC590B | Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards | $50.00 | |
| Buy Now | |||
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2452IDDB#PBF | 3x2 DFN-8 | I | $2.77 | Yes | ||
| LTC2452IDDB#TRMPBF | 3x2 DFN-8 | I | $2.77 | $1.55 | Yes | |
| LTC2452IDDB#TRPBF | 3x2 DFN-8 | I | $2.77 | $1.50 | Yes | |
| Buy Now • Request Samples | ||||||
Applications
- System Monitoring
- Environmental Monitoring
- Direct Temperature Measurements
- Instrumentation
- Industrial Process Control
- Data Acquisition
- Embedded ADC Upgrades
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Design Tools
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Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
